Abstract: It is aimed to provide a connector which can be thinned. A connector is connected to a mating connector in a height direction and includes a wire insertion portion open in a direction orthogonal to the height direction, a wire member being partially inserted into the wire insertion portion, a connector opening open in the height direction, a terminal member of the mating connector being insertable into the connector opening to be electrically connectable to the wire member, and a connector fitting portion to be fit to the mating connector. A range H2 in the height direction of a connector sealing member for sealing between the connector fitting portion and the mating connector is set to at least partially overlap within a range H1 in the height direction of a wire sealing member for sealing between the wire member and the wire insertion portion.

Abstract: A communications connector has a main housing with a front opening and first, second, and third rear openings. The connector also has first, second, and third contacts, the first contact extends from the first rear opening of the main housing to the front opening of the main housing. The second contact extends from the second rear opening of the main housing to the front opening of the main housing. The third contact extends from the third rear opening of the main housing to a shield surrounding a front portion of the main housing.

Abstract: An electrical connector includes: a contact module including an insulative housing and an upper and lower rows of contacts; a shielding shell enclosing the contact module; an insulative outer cover enclosing the shielding shell; and a pair of brackets secured to the insulative outer cover, each bracket including a mounting portion having a bottom surface and a hole, wherein the mounting portion further has three downward protrusions leveled lower than the bottom surface.

Abstract: A safety switch for the control of access for machines and industrial plants comprises a casing adapted to be fastened to a fixed part of the access to be controlled and housing thereinside switching means) for controlling one or more control and/or service circuits of the machine or plant, driving means adapted to interact with the switching means upon the opening/closing of the access for opening/closing one or more circuits, anchoring means of the casing to the fixed part of the access, the anchoring means being integrated in the casing and adapted to allow the selective fixing to the fixed part of the access according to at least two mutually angled orientations, one or more auxiliary modules adapted to be selectively mounted to the longitudinal upper end of the casing, fixing means for fixing the one or more auxiliary modules to the casing.

Abstract: An electronic device may include thin antennas disposed proximate a rear or front surface. An antenna structure may be disposed at a portion of a first surface or a second surface of a non-metal structure within the device, and is electrically connected to the metal structure. The antenna structure may comprise: a first bonding layer attached to a portion of the first surface or the second surface, where an opening is formed in the first bonding layer at a location of the metal structure; a antenna element pattern arranged on the first bonding layer and electrically connected to the metal structure through the opening; a second bonding layer arranged on the antenna element pattern; and an insulation layer arranged on the second bonding layer.

Abstract: A fastening structure including a base pillar, a pair of elastic arms, and a top pillar is provided. The base pillar is assembled to an object, the elastic arms are connected between the top and the base pillars, and a gap is provided between the elastic arms. The top pillar is adapted to stretch or compress the elastic arms when an external force is exerted to reduce or expand the gap. The top pillar and the elastic arms pass through a through hole of a connector when the elastic arms are stretched to reduce the gap to make the connector contact the base pillar. After the force is removed, the gap between the elastic arms is restored to fasten the fastening structure between the elastic arms and the base pillar in a floating state. An electronic assembly and an operating method of the fastening structure are also provided.

Abstract: An interface mounting device includes a circuit board with a connector and a bracket configured to receive an interface device and including a hook. The circuit board defines an installation opening and a cutout extending from an edge of the installation opening. The bracket is received in the installation opening. The hook is engaged with the circuit board through the cutout. The bracket defines a guiding slot aligned with the connector. The guiding slot is configured for a coupling portion of the interface device to pass through and coupling to the connector. A printed circuit board assembly with the interface mounting device is also provided.

Abstract: A receptacle assembly is disclosed having a plurality of contact pins, a contact aligning block, a block receiving body, a housing, and a retaining plate. The contact aligning block is formed to retain the contact pins, and into which a portion of the contact pins is inserted. The block receiving body is overmolded to cover the contact aligning block. The block receiving body is positioned in the housing. The retaining plate is positioned against the block receiving body, applying a force against the block receiving body, and compressively holding and retaining the block receiving body in the housing.

Abstract: A connector includes one or more contacts, an insulator that holds the one or more contacts, an outer shell that is made of metal and covers around the insulator except a front face part and a back face part of the insulator in a fitting direction of the connector with a counter connector, and a back shell that is made of metal, covers the back face part of the insulator and has held portions to be held by the insulator, the insulator having back shell holders that hold corresponding held portions of the back shell, thereby holding the back shell.

Abstract: An apparatus having a connector housing having an interior socket to receive a connector plug. The connector housing including a mounting hole through the interior socket, the mounting hole comprising a top opening in a first side of the interior socket and a bottom opening in a second side of the interior socket, the first side opposite the second side. A central axis of the mounting hole is oriented perpendicular to a central axis of the interior socket and the central axis of the mounting hole intersects the central axis of the interior socket, the mounting hole to allow a mounting element to pass through the interior socket along the central axis of the mounting hole.

Abstract: In an inner peripheral surface of metal collar fixed to a flange part of a power receiving side connector, a female screw is formed. When the flange part is attached to a connector attaching part from the outer surface side of a vehicle body, the flange part is fastened to the connector attaching part by a first male screw member inserted into the metal collar and a nut screwed to the first male screw member. When the flange part is attached to the connector attaching part from the inner surface side of the vehicle body, the flange part is fastened to the connector attaching part by a second male screw member screwed to the metal collar.

Abstract: An adaptor that fits over an electrical receptacle. The adaptor may include a plate member. The plate member may include slots running through that align with electrical sockets on an electrical receptacle. The adaptor may be attached to the electrical receptacle via screws. The plate member may further include a threaded hub. Therefore, a plug-in transformer may plug into an electrical receptacle through the adaptor and may be screwed into the adapter for further securement.

Abstract: A new and useful electrical connector is provided, that is designed to protect existing electrical outlets from trauma and destruction, by preventing them from being dislodged by movement of a patient support such as a hospital bed, or scraped off of the wall by passing (moving) machinery, hospital beds, equipment and vehicles during the normal use of the bed, the machinery, or equipment. in this application reference to an electrical plug component encompasses traditional 2 or 3 prong plugs that pima into grounded or ungrounded wall outlet sockets, as well as phone or laptop jacks that would plug into wall outlet sockets configured for such jacks. In addition, a new and useful coupling structure, for electrical couplings that need to be spaced from a wall socket, is provided.

Abstract: A device connector to be mounted and fixed to a case of a device includes a case-side connector to be fixed to the case by fitting a tool such as an impact wrench to a bolt head provided on a fixing bolt and tightening the fixing bolt into the case, a mating connector to be connected to the case-side connector and fixed to the case by tightening a connecting bolt into the case with the mating connector mounted on the case-side connector, and an access prohibiting portion provided on the mating connector and configured to prohibit the tool from being fitted to the bolt head by being arranged in proximity to the bolt head of the fixing bolt when the mating connector is mounted on the case-side connector.

Abstract: Disclosed is a shield connector structure preventing improper connection of a shield electric wire. The shield connector includes a housing fixed to an outer face of a metal case and a shield member connecting a shield part of the shield electric wire and the metal case, on one of the outer face of the metal case and an opposite face of the housing is formed a pin (projection) projecting toward the other, on the other are formed a positioning hole receiving the pin and a recess, the recess includes a slant face slanted in a peripheral direction about a center axis of an insertion hole, and abutting of the pin of the improper combination onto the slant face rotates a bolt hole of the metal case and a through hole of the housing about the center axis, making it impossible for a bolt to thread into.

Abstract: A male connector (10) is mounted to a case (C) of a device and includes a bolt (B) with a tightening portion (B1) to be engaged by a tool for screwing the bolt into a bolt hole (C2). A shield (20) includes an insertion hole (22) for receiving the bolt (B) and a bolt cap (40) covers the tightening portion (B1). A seat (21) is provided adjacent the insertion hole (22) and is sandwiched by an edge of the bolt hole (C2) and the tightening portion (B1) in the axial direction. A flange (B12) projects out from the tightening portion (B1). A mounting recess (D) is formed between the flange (B12) and the seat (21). A mounting portion (42) is mounted in the mounting recess (D) and engages the bolt cap (40) to hold the bolt cap (40) on the tightening portion (B1).

Abstract: A connector (10) to be mounted on end portions of wires (16) includes first terminals (19) connected to the end portions of the wires (16), second terminals (23) electrically connected to the first terminals (19) via flexible conductive members (29) and connected to terminals of a mating connector (CN), and a housing (33) for accommodating the first terminals (19) and the second terminals (23).

Abstract: A fixing apparatus for a connector includes a fixing plate and a fastener. The connector includes a main body, a block protruding from the main body, a connecting portion protruding from the block, and two protrusions respectively extending from opposite sides of the block. The fixing plate defines an opening, two notches communicating with the opening, and a positioning hole. The fastener is mounted to the main body of the connector and includes a slidable shaft. When the connecting portion and the block are extended through the opening, the protrusions are respectively extended through the notches, and the main body engages with a rear surface of the fixing plate. The connector is capable of sliding along the opening, to allow the protrusions to engage with a front surface of the fixing plate, and to allow the shaft to engage in the positioning hole.

Abstract: An electrical connector includes an electrical connecting base, a press cover, a fastening member and at least one thrust member. The press cover covers on the electrical connecting base, and substantially horizontally placed. A fastening portion and a pivoting portion are respectively formed on two opposite ends of the press cover. The press cover is opened or closed relative to the electrical connecting base around the pivoting portion. The fastening member correspondingly presses against the fastening portion of the press cover when the press cover is horizontally placed. The at least one thrust member urges against the press cover upwards. When the fastening member is released from pressing against the fastening portion, the press cover is urged to pop up, so that an operating space is formed below the press cover, which is sufficient for an operator to open the press cover manually.

Abstract: A fixing apparatus for a connector includes a fixing plate and a fastener. The connector includes a main body, a block protruding from the main body, a connecting portion protruding from the block, and two protrusions respectively extending from opposite sides of the block. The fixing plate defines an opening, two notches communicating with the opening, and a positioning hole. The fastener is mounted to the main body of the connector and includes a slidable shaft. When the connecting portion and the block are extended through the opening, the protrusions are respectively extended through the notches, and the main body engages with a rear surface of the fixing plate. The connector is capable of sliding along the opening, to allow the protrusions to engage with a front surface of the fixing plate, and to allow the shaft to engage in the positioning hole.

Abstract: In an inner peripheral surface of metal collar fixed to a flange part of a power receiving side connector, a female screw is formed. When the flange part is attached to a connector attaching part from the outer surface side of a vehicle body, the flange part is fastened to the connector attaching part by a first male screw member inserted into the metal collar and a nut screwed to the first male screw member. When the flange part is attached to the connector attaching part from the inner surface side of the vehicle body, the flange part is fastened to the connector attaching part by a second male screw member screwed to the metal collar.

Abstract: A connector and printed circuit board assembly includes a printed circuit board, a connector fixed on the printed circuit board, and a fixing board fixed on the connector, the fixing board defining a through hole, a connecting member fixed on the printed circuit board adjacent to the connector, a threaded retainer, and a threaded post securely connected with the connecting member. The threaded post passes through the through hole and seats the threaded retainer to lock the connector onto the printed circuit board.

Abstract: A connector assembly includes a resilient mounting panel and a connector. The resilient mounting panel includes a panel body and a mounting protrusion. The connector includes a connector body and a mounting portion extending from the connector body. The connector body is configured to connect to an electronic device, and the mounting portion is configured to be secured to the mounting protrusion and to space the connector from the panel body.

Abstract: Concepts and technologies described herein provide for securing a connector shell to a circuit board using a separate connector hat with elongated mounting posts. According to one aspect of the disclosure provided herein, a connector hat includes a one-piece body with a top surface and a pair of mounting posts. The mounting posts extend downwards from opposing side edges of the top surface. The posts are of sufficient length to extend beyond a bottom surface of a connector shell to which the connector hat is configured to attach, and through a bottom surface of an associated circuit board. The two-piece connector assembly design utilizing the connector hat with mounting posts allows the mounting posts to be manufactured at any desirable length to facilitate installation of the connector assembly to a circuit board.

Abstract: An attachment device (1) for a connector, includes at least two clamps (2a, 2b, 3) that can attach the attachment device (1) in a removable manner to a panel (30), and a base (4) that delimits a housing (6) that can accommodate a connector (31) or a connector support (31), the attachment device (1) includes a bolt (5), whereby one of the clamps (3) is arranged on the bolt (5) and another of the clamps (2a or 2b) on the base (4), whereby the bolt (5) is able to pivot relative to the base (4) so as to bolt, via the clamp (3) of the bolt (5), the attachment device (1) to the panel (30), whereby the bolt (5) in addition is adjacent to the housing (6) such that when the connector (31) or the connector support (31) is in the housing (6), it prevents the bolt (5) from pivoting.

Abstract: An attaching structure of a connector for attaching a connector to an attached portion, includes: a holding unit which holds the connector at an attaching position by sliding the connector in a direction of intersecting with a superimposing direction of the connector and the attached portion to superimpose the connector on the attached portion; and a pair of holes provided at the connector and the attached portion for passing a screw member by being communicated with each other when the connector is disposed at the attaching position.

Abstract: A connector device (10) has a connector (20) to be mounted on a metal case (11) that accommodates a device therein and is covered by a first shield shell (50) and a second shield shell (60). Connecting portions for connecting the first and second shield shells (50, 60) are provided at least at three positions and these connecting portions are arranged at positions displaced in a connecting direction of the connector (20) and a mating connector (40) and a direction orthogonal to the connecting direction. The connecting positions of the first and second shield shells (50, 60) are well-balanced to provide a good a shielding performance.

Abstract: Various socket configurations having coaxial alignment and attachments are disclosed. The various socket configurations can use two-mount and three-mount configurations to facilitate adaptability to high density routing.

Abstract: A sealed, solderless I/O connector for allowing the connection of cables or desk accessories to a mobile communication device while providing a weather tight seal allowing the use of the mobile communication device outdoors. The sealed, solderless I/O connector provides for greater tolerance of mechanical stress due to vibration or dropping because the contact points between the connector and the printed circuit board accomplished with a “U” shaped spring contact. The sealed, solderless I/O connector also provides a locking mechanism to prevent unintended detachment of the cable or desk accessory.

Abstract: An LGA socket includes an insulative housing, a number of conductive terminals received retained in the housing, a stiffener surrounding the insulative housing, a load plate and a load lever pivotally assembled to the stiffener, and a locking mechanism. The locking mechanism includes a screw attached to the stiffener in a horizontal direction and a washer attached to the support plate in a vertical direction. The locking mechanism is attached to the stiffener before the LGA socket mounting to a printed circuit board.

Abstract: In one exemplary embodiment, an electrical connector including a D-subminiature connector assembly that includes a base; a D-subminiature connector mounted to the base; and a header mounted to the base. The header has a plurality of internal contacts and an open rear end for receiving a receptacle that includes conductive contacts that are electrically connected to the internal contacts when the receptacle is fully inserted into and engaged with the header.

Abstract: A mounting bracket for a trailer wiring connector is described. The mounting bracket may attach the electrical connector to a cross bar of a towing vehicle. The mounting bracket may include an upper housing and a lower housing. The upper housing may include a mounting aperture and a plurality of slots. The lower housing may include a threaded aperture and a plurality of tabs. The tabs may be capable of engagement with the slots to secure the upper housing to the lower housing. The lower housing may also include a clamping fastener, such as a set screw, that may be capable of engagement with a threaded aperture, wherein the set screw may be capable of clamping engagement with the electrical connector. The mounting bracket may also include a cover capable of engagement with the electrical connector.

Abstract: An electrical device includes a conductive member and a voltage-resistant connector to be mounted to the metal enclosure. The conductive member such as a metal enclosure, includes a pair of clasping portions separated from each other. Each of the pair of clasping portions includes a pair of fixing arms. The voltage-resistant connector includes a main body to electrically connect a high-voltage output and a load of the electrical device, and an insulated member between the main body and the conductive member to increase a beeline distance between the voltage-resistant connector and the insulated member to avoid arcing therebetween. The insulated member defines a pair of holes corresponding to the clasping portions. The pair of fixing arms of each of the pair of clasping portion extends through a corresponding hole and clasps the insulated member to fix the voltage-resistant connector on the conductive member.

Abstract: A connector fastening arrangement locks a connector housing to a printed circuit board, thereby to effect engagement between a resilient contact on the housing and a corresponding electrical element on the adjacent top surface of the printed circuit board. A rotary locking member carried by the connector housing extends within a locking bore contained in the adjacent surface of the printed circuit board, the locking member being rotatable between locked and unlocked positions relative to the connector housing. In a preferred embodiment, the locking bore is a through bore, and the locking member extends completely through the locking bore. When the locking member is rotated toward the locked position, an eccentric locking device carried by the extremity of the locking member extends in locking engagement beneath the bottom surface of the printed circuit board. In a second embodiment, the locking device comprises a bayonet fitting arrangement.

Abstract: An electrical connector assembly (100) in accordance with a preferred embodiment of the present invention, comprises an electrical connector (200) for connecting an electronic package with a circuit substrate (60) and a connecting device (300) for fixing the electrical connector (200) to the circuit substrate (60). The electrical connector (200) includes a housing assembly (1) with a plurality of contacts (10) received therein. The connecting device (1) includes a first screw (70), a second screw (90) and a nut (80) connecting the first screw (70) and the second screw (90). The nut (80) connecting with the first screw (70) makes the first screw (70) securely located on the housing assembly (1) and prevents the first screw (70) losing in the transportation.

Abstract: When a predetermined rupture load is applied to a mounting bracket formed on an attachment part, a rupture develops in the mounting bracket, and the attachment part can be separated from a base part by this rupture. The mounting bracket, in which a slit extending in a direction intersecting a loading direction of a rupture load is formed, includes a rigid portion disposed at one side of the slit and a breakable portion disposed at the other side of the slit which is breakable because of the presence of the bolt.

Abstract: According to one embodiment, an electronic apparatus includes a conductive layer provided on an outer surface of a housing, a conductive member provided inside the housing, and a connecting component attached to the housing. The housing is provided with a through hole which causes the inside of the housing to communicate with the outside. The connecting component has conductivity, and is provided with a major diameter section and a minor diameter section. The major diameter section is formed larger than the through hole, is opposed to the conductive layer from outside the housing, and is electrically connected to the conductive layer. The minor diameter section is formed smaller than the through hole, is inserted in the through hole to reach the inside of the housing, and is electrically connected to the conductive member.

Abstract: A junction block includes attaching brackets projected from the upper wall and lower wall of a block body. The block body is attached to a body panel through the attaching brackets. The attaching bracket to be pulled is provided with a recess 15b and/or a hole 15a for inducing rupture. When a wire harness derived from the block body is pulled in a vehicle width direction during recovery of the junction block, the block body is ruptured-separated from the attaching bracket at the recess 15b and/or hole 15c. In such a configuration, the block body can be rupture-separated only during recovery of a junction box body without being ruptured-separated owing to vibration/shock during vehicle running to improve recovery workability and recycling property.

Abstract: Described are electrical connectors for hi-power applications where multiple electrical wires are to be maintained apart and electrically insulated from one another. The connectors are to be used to mount the plurality of wires to a receptacle of a casing so as to establish a connection with electric circuit(s) provided inside the casing. Portions of the connector interact with the casing to provide a seal therebetween to prevent the water and dirt infiltration inside the casing.

Abstract: A cable connector assembly (100) is assembled to a panel (300) defining a pair of insertion holes (32). The cable connector assembly includes a first housing (1), a number of first and second terminals (21, 22) assembled to the first housing, a cable (9), a second housing (7) assembled to the first housing, and a pair of fixing members. The first housing has a pair of mounting holes defined at opposite sides thereof. Each fixing member includes a screw (5) defining a screw recess (521) engageable with the insertion hole of the panel, and a screw cap (6) including a gasket (61) defining a through hole (611) engageable with the screw recess of the screw and a number of tabs (62) radially protruding from the gasket and resisting against the mounting hole.

Abstract: This connector-mounting configuration comprises: a latching claw that is provided at a connector and latches to a substrate, whereby the substrate is equipped with the connector; a protruding portion that is provided so as to protrude from the latching claw and latches to the substrate, whereby the latching claw latches to the substrate; and a flexing portion that is formed from a first plate member that is a plate-like component and that is disposed at a position closer to the base end side of the latching claw than the protruding portion thereof. The flexing portion is disposed so that the plate thickness direction of the first plate member coincides with the protruding direction of the protruding portion.

Abstract: A card-through-connector fastener for reducing connector distortion is disclosed. One embodiment provides circuit card coupled with electronics associated with an actuator. A connector assembly is also coupled with the circuit card, the connector assembly for conveying data with respect to the circuit card. In addition, a fastener connectively couples the connector assembly with a portion of the housing, the fastener passing through the circuit card and providing fixed support between the connector assembly and the hard disk drive housing to reduce distortion transfer from the circuit card to the connector.

Abstract: An attachment device (1) for a connector, includes at least two clamps (2a, 2b, 3) that can attach the attachment device (1) in a removable manner to a panel (30), and a base (4) that delimits a housing (6) that can accommodate a connector (31) or a connector support (31), the attachment device (1) includes a bolt (5), whereby one of the clamps (3) is arranged on the bolt (5) and another of the clamps (2a or 2b) on the base (4), whereby the bolt (5) is able to pivot relative to the base (4) so as to bolt, via the clamp (3) of the bolt (5), the attachment device (1) to the panel (30), whereby the bolt (5) in addition is adjacent to the housing (6) such that when the connector (31) or the connector support (31) is in the housing (6), it prevents the bolt (5) from pivoting.

Abstract: A cable connector assembly (100) adapted for mounting to a panel (9) includes an insulated housing (1) having a base portion (11), a tongue portion (12) extending forwardly from the base portion and at least a mounting portion (13) integrated with the base portion; a plurality of contacts (2) assembled to the insulated housing, with mating portions thereof disposed on the tongue portion; at least a cable (5) electrically connecting to the contacts, at least a nut (6) permanently assembled to a mounting portion, and a bolt (7) combining with the nut (6) to fasten the cable connector assembly with the panel together.

Abstract: An electrical connector comprises a housing (1), a cover (2) mounted on the housing (1), a plurality of terminals (3) received in the housing (1), a pair of screw members (5) mounted on two ends of the housing (1) for connecting the housing (1) to a printed circuit board. The housing (1) defines an upper surface (11) and a pair of recesses (12) on two ends thereof for receiving the screw members (5), each recess (12) at least defines one triangle rib (13) for engaging interferential with the screw members (5). The triangle rib (13) is clear from the upper surface (11) of the housing (1).

Abstract: An electronic control module for electrical components of a vehicle. The electronic control module has an internal electrical ground. The module comprises a housing having an open end and a side wall extending from the open end. The side wall has a slot formed along the side wall. The module further comprises a printed circuit board disposed within the slot. The printed circuit board has a solder pattern disposed thereon, wherein at least a portion of the solder pattern is adjacent the open end and aligned with the slot. The module further comprises an end plate attached to the open end of the housing to enclose the printed circuit board therein. The end plate has an aperture being aligned with the slot of the housing. The module further comprises an attachment member disposed through the aperture in the slot. The attachment member is in contact with the portion of the solder pattern and with the side wall to provide an electrical ground for the printed circuit board.

Abstract: A clip is attachable to a flange of a connector terminating an electrical cable, and is configured to mechanically couple one side of the flange to an edge of a connector-installation aperture of a chassis, such that a distal end of the connector may engage a receptacle within the chassis. When the connector, with the clip attached, is placed in the chassis' connector-installation aperture, a notch region of the clip engages the chassis at an edge of its connector-installation aperture, causing a bore on a second side of the flange to be coaxial with a bore in the chassis, so that a hardware fitting therethrough may secure the connector to the chassis.

Abstract: An electronic apparatus includes a housing having an opening, a connector disposed at a position allowing the connector to face out from the opening and transferring signals to and from an external device. The electronic apparatus also includes a fixing component that secures the connector to the electronic apparatus. The fixing component has a pressure plate that is spread on and in contact with a surface of the connector where a projection is formed. The pressure plate has an escape section for accepting the projection.

Abstract: A fixing bracket for fixing a housing on a board includes: a placing portion configured to be placed on the board; an attaching portion configured to be attached to the housing; and a retaining portion which retains the placing portion to the board. The placing portion may include a receiving portion which accommodates the retaining portion.

Abstract: A cam-action expanding standoff connector and related method are disclosed for mounting a circuit board. The standoff connector includes a body and a plurality of mounting members having interior longitudinally-extending camming portions for engagement by a cam. A cam is configured to be positioned within the mounting members in a first position in which the mounting members are not expanded against the interior of a mounting opening and in a second position in which the cam engages the camming portions to expand the plurality of mounting members against the interior of the mounting opening. Since the camming action is horizontal only (purely radial), practically no vertical forces are applied to the circuit board and a best-fit alignment between a circuit board and heatsink can be established and maintained.